David Martin; Ahmed Rashid; Kenneth Dam; Lynn Sherr

CBS correspondent David Martin reports on the fighting in Afghanistan, where U.S. Marines are poised to engage the Taliban in combat. Daily Telegraph correspondent Ahmed Rashid phones in from Pakistan with an update on the possible location of Osama bin Laden and the likelihood that Mullah Omar is still in Kandahar. Kenneth Dam, deputy secretary of the treasury, describes the economic side of the war on terrorism, including how terrorist groups like Al Qaeda get funding, how they move money, and how difficult it is to trace. Lynn Sherr shares her new book, "America the Beautiful: The Stirring True Story Behind Our Nation's Favorite Song."